JEE MAIN - Chemistry (2023 - 1st February Evening Shift - No. 6)
Which element is not present in Nessler's reagent?
Mercury
Iodine
Potassium
Oxygen
Explanation
Nessler’s reagent is K2[HgI4]
Therefore, among the options given, oxygen is the only element that is not present in Nessler's reagent.
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